Bjorn_L

Bjorn_L

Lives in United States Seattle, WA, United States
Joined on Jul 29, 2009
About me:

Current Cameras:
Nikon d700 with a number of lenses.
Nikon d90 with a number of lenses.
Sony rx10
and a couple of older dust collectors.
Previous Cameras:
Mostly Minolta film cameras (and 1 Canon), Minolta 7d, Canon 500d (aka T1i), and a close to a dozen bridge and pocket cameras. My favorite was the Minolta 7i.

Comments

Total: 118, showing: 1 – 20
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There are numerous HDMI streamers out there. This is the only one with a monthly fee or advertising. Go to amazon.com and search for HDMI transmitter. Or just look at Actiontec brand as an example.

Direct link | Posted on Mar 6, 2015 at 06:43 UTC as 4th comment | 1 reply
On Hands-on with Nikon D7200 article (70 comments in total)
In reply to:

DavidNJ100: Sounds nice. Get the body with a Sigma 18-35/1.8 ($800 new) and Sigma 50-150/2.8 OS ($600-$800 used). Maybe add a Tokina 11-20/2.8, the Sigma 150-600 Contemporary ($1200 new) or Nikon 300/4 ($2000). An external video recorder should give excellent results; it now has a flat picture style...de rigueur for video (standard video compression crushes the shadows limiting grading in post).

It will be interesting to see how this stacks up against the $500 more expensive Canon 7D Mark II.

This is a camera that will be used for telephoto work. On issue is that there is only 1 auto focus point at F8. It would have been nice if it supported the same 11 points at F8 as the D750 which also has a 51 point sensor. It would also have been nice if it had that camera's tilt screen.

Still, the body is just over half the cost of the D750, lenses are a lot less expensive, and it has the crop sensor high pixel density telephoto capability.

Mark K,
I have the exact same high opinion of the Sigma lens. If I get the d7200 that won't be the reason, but it most certainly would be on my must buy list.

Direct link | Posted on Mar 5, 2015 at 15:55 UTC
On Hands-on with Nikon D7200 article (70 comments in total)
In reply to:

DavidNJ100: Sounds nice. Get the body with a Sigma 18-35/1.8 ($800 new) and Sigma 50-150/2.8 OS ($600-$800 used). Maybe add a Tokina 11-20/2.8, the Sigma 150-600 Contemporary ($1200 new) or Nikon 300/4 ($2000). An external video recorder should give excellent results; it now has a flat picture style...de rigueur for video (standard video compression crushes the shadows limiting grading in post).

It will be interesting to see how this stacks up against the $500 more expensive Canon 7D Mark II.

This is a camera that will be used for telephoto work. On issue is that there is only 1 auto focus point at F8. It would have been nice if it supported the same 11 points at F8 as the D750 which also has a 51 point sensor. It would also have been nice if it had that camera's tilt screen.

Still, the body is just over half the cost of the D750, lenses are a lot less expensive, and it has the crop sensor high pixel density telephoto capability.

Scottelly,
I too have been waiting forever it seems to get a d400. But I have to say this d7200 (unlike the d7000 and d7100) does seem very very close. Sealed, big buffer, state of the art focus system. Still if a higher spec d400 with a heavier body, larger grip (like a d800 with a d7200 sensor) were to arrive, I'd prefer that. I understand that some love the fold out screen (ala d750) but for me, it is not a concern. A heavier body would be preferred though.

Mark K,
Might I suggest dxomark.com. With your interest in sensor performance this site is sure to be interesting.

Direct link | Posted on Mar 3, 2015 at 15:07 UTC
On Hands-on with Nikon D7200 article (70 comments in total)
In reply to:

DavidNJ100: Sounds nice. Get the body with a Sigma 18-35/1.8 ($800 new) and Sigma 50-150/2.8 OS ($600-$800 used). Maybe add a Tokina 11-20/2.8, the Sigma 150-600 Contemporary ($1200 new) or Nikon 300/4 ($2000). An external video recorder should give excellent results; it now has a flat picture style...de rigueur for video (standard video compression crushes the shadows limiting grading in post).

It will be interesting to see how this stacks up against the $500 more expensive Canon 7D Mark II.

This is a camera that will be used for telephoto work. On issue is that there is only 1 auto focus point at F8. It would have been nice if it supported the same 11 points at F8 as the D750 which also has a 51 point sensor. It would also have been nice if it had that camera's tilt screen.

Still, the body is just over half the cost of the D750, lenses are a lot less expensive, and it has the crop sensor high pixel density telephoto capability.

Mark K,
I would be shocked if the 7d mk2 tests better at high ISO. I can not recall the last Canon which took the lead in ISO performance.
Still, the Canon 7dm2 is certainly a VERY good camera. It, this new Nikon, the Pentax k3 and Sony a77II give consumers looking for a high end APS-C camera a lovely quartet to choose between.

Direct link | Posted on Mar 2, 2015 at 16:06 UTC
In reply to:

Bjorn_L: Since conflicting info is out there, I contacted Tamron to find out if the lens is sealed. It is not.

From Tamron
"Thank you for contacting Tamron! The 15-30mm has moisture resistant design that helps prevent water from penetrating the lens. It is not however sealed to be water or weather proof so it is still possible for moisture to get in the lens. The design is intended to reduce the risk of damage should the lens come in contact with water but I would highly recommend keeping it away from rain or prolonged high humidity if you can."

The 16-35 is sealed.

Direct link | Posted on Feb 27, 2015 at 01:26 UTC

Since conflicting info is out there, I contacted Tamron to find out if the lens is sealed. It is not.

From Tamron
"Thank you for contacting Tamron! The 15-30mm has moisture resistant design that helps prevent water from penetrating the lens. It is not however sealed to be water or weather proof so it is still possible for moisture to get in the lens. The design is intended to reduce the risk of damage should the lens come in contact with water but I would highly recommend keeping it away from rain or prolonged high humidity if you can."

Direct link | Posted on Feb 26, 2015 at 16:05 UTC as 10th comment | 3 replies

Has there been confirmation that this lens is sealed? If not I think I prefer the Tokina 16-28 f/2.8 or Nikon 16-35 f/4 vr (which is sealed)
The lens specifications on DPR and on Tamron's own site make no mention of sealing.

Direct link | Posted on Feb 25, 2015 at 17:05 UTC as 19th comment | 1 reply
In reply to:

Franz Weber: Why does nobody make a 12-50mm 2.8-4.0 lens?

I am using a GH3.

Direct link | Posted on Feb 5, 2015 at 22:05 UTC
In reply to:

Franz Weber: Why does nobody make a 12-50mm 2.8-4.0 lens?

@deep7 what adapter do you use and what do you call "quickly enough". I have an m4/3 and an adapter to use 4/3 lenses and my experience that focus is painfully slow. I tried several adapters as well and they all perform identically in this regard.

Direct link | Posted on Feb 5, 2015 at 21:41 UTC
On Olympus OM-D E-M5 II First Impressions Review preview (1341 comments in total)

Might want to mention which camera is which in the images. Not all are well versed enough in Oly cameras to spot that it is the II on the left and the older on the right.

Direct link | Posted on Feb 5, 2015 at 21:11 UTC as 198th comment | 1 reply
On 2014 Holiday Gift Guide: $500 and up article (5 comments in total)

type-o
The gift of gigantic storage capacity is loving permission for the photographer in your live to shoot

change to

The gift of gigantic storage capacity is loving permission for the photographer in your life to shoot

Also logic error. Implied strongly is that you get 12tb of storage AND raid protection. If you choose 12tb, you get NO protection and in fact raise your probability of an error by a ^2 since in a stripe set the entire data set is lost if either disk goes down. So you get 12TB of storage in a high risk configuration or 6tb with data protected in a mirror (raid).

Direct link | Posted on Dec 17, 2014 at 22:47 UTC as 4th comment | 1 reply
On Sony Alpha 77 II firmware update improves AF speed article (154 comments in total)
In reply to:

Tharaphita: It must have been really bad, if they were able to make it 2,5 faster. Lol

Tharaphita, I had the same thought.

Direct link | Posted on Dec 13, 2014 at 12:43 UTC
On Sony Alpha 77 II firmware update improves AF speed article (154 comments in total)
In reply to:

tecnoworld: I hope they'll test the new improved AF against the samsung nx1 and the top performer Nikon D750.

For the test to be valid, it could not be a living thing as those are random. An RC with a doll glued to the top would be better.

Direct link | Posted on Dec 13, 2014 at 12:41 UTC
In reply to:

Terry Breedlove: Will this technology also help with Dynamic range and noise ?

I mean seriously, you think ANYONE is stupid enough to buy your claims that what you do in post-processing impacts the original image as captured? Good lord!

Direct link | Posted on Dec 10, 2014 at 16:18 UTC
In reply to:

Terry Breedlove: Will this technology also help with Dynamic range and noise ?

I'm not arguing physics, were I to do so you wouldn't understand that either. Your ignorant blather that downsizing has anything to do with photons is so far that it is mind boggling that anyone, no matter how ill-versed would post it.

Direct link | Posted on Dec 10, 2014 at 16:16 UTC
In reply to:

Terry Breedlove: Will this technology also help with Dynamic range and noise ?

What happens in POST PROCESSING, for example downsizing, has nothing to do with ISO or DR in the original image.

Direct link | Posted on Dec 10, 2014 at 13:10 UTC
In reply to:

Terry Breedlove: Will this technology also help with Dynamic range and noise ?

I suggest you read up on the effects of photo stitching vs HDR

Direct link | Posted on Dec 10, 2014 at 11:09 UTC
In reply to:

Terry Breedlove: Will this technology also help with Dynamic range and noise ?

Still don't get the OBVIOUS texinwien?
You are ignoring the point that more photons aren't being captured, just the same amount over and over.
And more images aren't being blended. Blended is photo stacking which does not increase resolution, it would be a 16mp final image.
You are confusing HDR and similar techniques with photo stitching.

Direct link | Posted on Dec 10, 2014 at 10:21 UTC
In reply to:

Terry Breedlove: Will this technology also help with Dynamic range and noise ?

Where that exact noise will be and how bad it will look is (as you say) random. However SNR is fairly predictable. So if you took 4 photos with the same settings on of the same scene with the same sensor there would be some variation in where the noise is and what it looks like but the actual amount of noise vs the amount of "noise-free" data would be the same.
Downsampling a 40mp image to a 16mp image will almost certainly produce a lower noise image. But as I said over and over, hiding noise by turning a 40mp image into a smaller size is not SNR it does not change how much noise there was only how much you see at a smaller resolution.
Consider the similar resolution Nikon d800. If it had a SNR of 90 at whatever ISO is was used at you can't change that image down to 16mp and claim it had an SNR of 99 simply because you managed to hide most of the noise by discarding data.
What you do in post is what you do in post. It has nothing to do with what the camera produced.

Direct link | Posted on Dec 10, 2014 at 02:19 UTC
In reply to:

Terry Breedlove: Will this technology also help with Dynamic range and noise ?

No Texinwien you are failing to understand something very very basic.
If you have an image which is 80% signal 20% noise. And you combine it with 3 more images which are the same ratio then the resulting image would still be 80% signal and 20% noise.... just 4 times as large.
Would the SNR be the same for 4 exposures? Yes, given that the exact same exposure settings, same scene and same sensor would be used.
Signal to noise for the thick headed or professional fan boys is just the amount of good data vs bad data in a data set. When you increase the data set size the ratio it contains is the same (DR & ISO is the same).
(80+80+80+80) = 320
(20+20+20+20) = 80
320+80= 400
320/400 = 80% signal
Down sampling can potentially hide some noise. But like I explained above this doesn't change how much noise was there originally.
The Nikon d800 has a good SNR because it has a higher % of good data to bad data, not because you can down-sample its 36mp images to some smaller image size.

Direct link | Posted on Dec 10, 2014 at 01:44 UTC
Total: 118, showing: 1 – 20
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